Confined Masonry question

[mar2805]

Hi folks!
Please see attached images.
The 1st floor slab is canterlivering from the groundfloor walls.
Would you say that the 1st floor RC confining element (marked with "?") is necesary, since there is another one at the end of the wall?

Thank you

 

[MotorCity]

Probably best to ask the person who gave you this sketch. Not enough information to guess whether this member is necessary. I'd say its plausible that the building could work with or without this member depending on its function and the loading.

 

[BAretired]

Not enough information to conclude that the walls are masonry. I would prefer a stud wall and frame it as shown by the bright orange members below. Could repeat the framing at roof level if necessary.

But really, there are many more possibilities, which the architect would no doubt point out.

 

[HTURKAK]

My vote is, It is not necessary provided that the walls are load bearing masonry and there is perimeter lintel on all around the second storey walls ! .. The front facade composed of almost windows but you have a column at the tip of the cantilever corner which can resist horizontal forces. I would like to remind also , the use of metal anchorages btw masonry and RC columns..


Will you post the plans, specially the roof plan ?


















I cannot give you the formula for success, but I can give you the formula for failure..It is: Try to please everybody.

 

[kipfoot]

you might want to repeat the frame that's on the front wall (under the cantilever) on the upper floor. In that case, yes, you need the column

 

[mar2805]

Heres an more detailed look.
All masonry bearing wall will be connected with confining RC elements!
The roof is flat RC slab!

 

[JLNJ]

I am unfamiliar with this type of construction. Do these elements get designed (i.e. engineered) or do you just put them in "by eye" and figure that will be good enough?